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netstat: return nothing when /proc/net/snmp6 not found

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Matt Layher 2017-10-31 15:26:32 -04:00
parent 0eecaa9547
commit 296b62acb7
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1 changed files with 6 additions and 0 deletions
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6
collector/netstat_linux.go
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@ -121,6 +121,12 @@ func parseNetStats(r io.Reader, fileName string) (map[string]map[string]string,
func getSNMP6Stats(fileName string) (map[string]map[string]string, error) {
file, err := os.Open(fileName)
if err != nil {
// On systems with IPv6 disabled, this file won't exist.
// Do nothing.
if os.IsNotExist(err) {
return nil, nil
}
return nil, err
}
defer file.Close()